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Finding the Fourth Proportional to 252,486.99, 348,433.25 and 139,309.74

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Solution

The fourth proportional to 252,486.99, 348,433.25 and 139,309.74 is: 192,248.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,486.99 : 348,433.25 = 139,309.74 : x
  2. Step 2: Convert to fraction form
    252,486.99/348,433.25 = 139,309.74/x
  3. Step 3: Cross multiply
    252,486.99x = 348,433.25 × 139,309.74
  4. Step 4: Simplify right side
    252,486.99x = 48,540,144,768.31
  5. Step 5: Solve for x
    x = 48,540,144,768.31/252,486.99
  6. Step 6: Final answer
    x = 192,248.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.